Healthcare provider profile · identity verified

Timothy David Trojan, MD

Allopathic & Osteopathic Physicians|Allergy & Immunology · ENID, OK · NPI 1518125053

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Timothy David Trojan, MD received $2,398.77 in general payments during 2025 across 107 reported records.

CSL Behring accounted for 15.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 20 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Nucala, Panzyga, Xhance, Xolair.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 98 claims for Symbicort by this doctor in 2024.

Genentech USA, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Xolair as an associated drug or biological on 11057 records involving 4008 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Xolair by this doctor in 2024.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported NUCALA as an associated drug or biological on 100127 records involving 16970 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Nucala by this doctor in 2024.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 82 claims for Trelegy Ellipta by this doctor in 2024.

Novartis Pharmaceuticals Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported XOLAIR as an associated drug or biological on 5293 records involving 2861 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Xolair by this doctor in 2024.

Optinose US, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Xhance as an associated drug or biological on 10863 records involving 5058 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Xhance by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PANZYGA as an associated drug or biological on 8346 records involving 3334 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Panzyga by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$2,398.77

107 reported records · 16 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
CSL Behring Unresolved — no canonical attribution shown $373.6315.6%172025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $312.4613.0%142025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $282.7111.8%122025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $233.309.7%132025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $206.018.6%102025
GENZYME CORPORATION Unresolved — no canonical attribution shown $198.778.3%82025
Optinose US, Inc. Unresolved — no canonical attribution shown $148.196.2%42025
Amgen Inc. Unresolved — no canonical attribution shown $148.146.2%82025
ARS Pharmaceuticals Operations, Inc. Unresolved — no canonical attribution shown $107.904.5%52025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $93.453.9%42025
Lilly USA, LLC Unresolved — no canonical attribution shown $92.463.9%52025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $86.993.6%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $37.491.6%22025
PFIZER INC. Unresolved — no canonical attribution shown $31.001.3%22025
BioCryst US Sales Co., LLC Unresolved — no canonical attribution shown $25.721.1%12025
Blueprint Medicines Corporation Unresolved — no canonical attribution shown $20.550.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,277.78105
Education$120.992

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc., SANOFI-AVENTIS U.S. LLC $491.77 19 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $324.22 15 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $233.30 13 2025
Source payment records
FASENRA
Normalized: fasenra
Biological AstraZeneca Pharmaceuticals LP $203.77 9 2025
Source payment records
Xhance
Normalized: xhance
Drug Optinose US, Inc. $148.19 4 2025
Source payment records
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc., AstraZeneca Pharmaceuticals LP $147.41 8 2025
Source payment records
Rhapsido
Normalized: rhapsido
Drug Novartis Pharmaceuticals Corporation $133.25 5 2025
Source payment records
XOLAIR
Normalized: xolair
Biological, Drug Genentech USA, Inc., Novartis Pharmaceuticals Corporation $117.05 7 2025
Source payment records
NEFFY
Normalized: neffy
Drug ARS Pharmaceuticals Operations, Inc. $107.90 5 2025
Source payment records
EBGLYSS
Normalized: ebglyss
Drug Lilly USA, LLC $74.13 4 2025
Source payment records
CUVITRU
Normalized: cuvitru
Biological Takeda Pharmaceuticals U.S.A., Inc. $74.07 3 2025
Source payment records
Haegarda
Normalized: haegarda
Biological CSL Behring $34.57 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $33.27 1 2025
Source payment records
CUTAQUIG
Normalized: cutaquig
Biological PFIZER INC. $31.00 2 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $31.00 2 2025
Source payment records
ORLADEYO
Normalized: orladeyo
Drug BioCryst US Sales Co., LLC $25.72 1 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Drug Blueprint Medicines Corporation $20.55 1 2025
Source payment records
EOHILIA
Normalized: eohilia
Drug Takeda Pharmaceuticals U.S.A., Inc. $19.38 1 2025
Source payment records
TALTZ
Normalized: taltz
Drug Lilly USA, LLC $16.33 1 2025
Source payment records
Andembry
Normalized: andembry
Biological CSL Behring $14.84 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
NUCALA
nucala
2025 Nucala 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
PANZYGA
panzyga
2025 Panzyga 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D
Xhance
xhance
2025 Xhance 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
XOLAIR
xolair
2025 Xolair 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
98 40
Genentech USA, Inc.
Exact reporting entity; no affiliate inference
2025 Xolair
open payments reported associated product
CMS Open Payments — General Payments
11057 supporting records · 4008 recipient NPIs · example record 1211488440
Xolair · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 NUCALA
open payments reported associated product
CMS Open Payments — General Payments
100127 supporting records · 16970 recipient NPIs · example record 1190332378
Nucala · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
82 19
Novartis Pharmaceuticals Corporation
Exact reporting entity; no affiliate inference
2025 XOLAIR
open payments reported associated product
CMS Open Payments — General Payments
5293 supporting records · 2861 recipient NPIs · example record 1200005083
Xolair · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
Optinose US, Inc.
Exact reporting entity; no affiliate inference
2025 Xhance
open payments reported associated product
CMS Open Payments — General Payments
10863 supporting records · 5058 recipient NPIs · example record 1163252000
Xhance · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PANZYGA
open payments reported associated product
CMS Open Payments — General Payments
8346 supporting records · 3334 recipient NPIs · example record 1228795271
Panzyga · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Ipratropium BromideIpratropium Bromide19588
Montelukast SodiumMontelukast Sodium17846
Azelastine HclAzelastine Hcl15374
Fluticasone PropionateFluticasone Propionate14662
Mometasone FuroateMometasone Furoate10050
SymbicortBudesonide/Formoterol Fumarate9840
Breztri AerosphereBudesonide/Glycopyr/Formoterol9423
OmeprazoleOmeprazole8325
Trelegy ElliptaFluticasone/Umeclidin/Vilanter8219
Albuterol Sulfate HfaAlbuterol Sulfate8032
EpinephrineEpinephrine7671
Spiriva RespimatTiotropium Bromide6013
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate5733
BreynaBudesonide/Formoterol Fumarate4418
Pantoprazole SodiumPantoprazole Sodium3711
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride35suppressed
FamotidineFamotidine30suppressed
PanzygaImmun Glob G(Igg)-Ifas/Glycine26suppressed
XolairOmalizumab26suppressed
Azelastine-FluticasoneAzelastine/Fluticasone21suppressed
DuleraMometasone/Formoterol21suppressed
Dupixent PenDupilumab16suppressed
Ventolin HfaAlbuterol Sulfate1611
Esomeprazole MagnesiumEsomeprazole Magnesium14suppressed
Desmopressin AcetateDesmopressin Acetate12suppressed
GabapentinGabapentin12suppressed
NucalaMepolizumab12suppressed
Olopatadine HclOlopatadine Hcl12suppressed
XhanceFluticasone Propionate12suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $2,398.77 · 107 records CSL Behring AIRSUPRA, AYVAKIT, Andembry, CUTAQUIG, CUVITRU, DUPIXENT, EBGLYSS, EOHILIA, FASENRA, Haegarda, Hizentra, NEFFY, NUCALA, ORLADEYO, PANZYGA, Rhapsido, TALTZ, TEZSPIRE, XOLAIR, Xhance 7
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error